LS4 Performance Grand Prix GXP | Monte Carlo SS | Impala SS | LaCrosse Super

Placement of cutout

Thread Tools
 
Search this Thread
 
Old Jan 22, 2013 | 07:28 PM
  #1  
gagt3100's Avatar
Thread Starter
Banned
iTrader: (-2)
 
Joined: Jul 2012
Posts: 222
Likes: 0
Default Placement of cutout

So i was thinking of putting a electric cutout on my car. I currently have a cat less hogan DP and a magnaflow exhaust attached to it.

Where would be the best place to put it? I was thinking cutting into the DP and placing it either after or before the bend.



here is a pic of the DP that is wrapped

Last edited by gagt3100; Jan 22, 2013 at 07:30 PM. Reason: Picture added
Reply
Old Jan 22, 2013 | 08:46 PM
  #2  
Barnett92's Avatar
On The Tree
iTrader: (1)
 
Joined: Apr 2012
Posts: 137
Likes: 0
From: Mary Esther, FL
Default

I wanted to get an eletric cutout on my downpipe too, but this article really helped me out:

https://ls1tech.com/forums/ls4-perfo...ut-cutout.html

I have mine before the mufflers (the first pic on the article) and I am very impressed with it!
Reply
Old Jan 23, 2013 | 06:37 PM
  #3  
mike690003's Avatar
TECH Enthusiast
iTrader: (2)
 
Joined: Nov 2007
Posts: 555
Likes: 0
Default

Let me know if you need an electric cutout. I have my slightly used DMH for sale. FOR CHEAP!!
Reply
Old Jan 23, 2013 | 06:54 PM
  #4  
Ill_Born_ss's Avatar
TECH Enthusiast
 
Joined: Nov 2008
Posts: 622
Likes: 1
Default

Definately want it after the cat, before it you will really screw with your fueling even if you had a special tune written for when it was open it would most likely leak and cause false readings while closed.
Reply
Old Jan 23, 2013 | 07:13 PM
  #5  
SSGoat's Avatar
Launching!
iTrader: (2)
 
Joined: May 2009
Posts: 245
Likes: 0
From: Long Beach CA.
Default

i put mine right before the cat on my stock pipe, no idea how to show you on yours lol but its pretty much facing at a 45ish degree towards the front, i figured might as well let it have a 'little' back pressure lmfao but who am i kidding... also i got a custom tune from lew to remove the rev limiter and so the check engine light wouldnt pop up for the o2

let me jus say.... cutout right there.. with rev limiter delete.... sweet jesus mary mother of god...
Reply
Old Jan 23, 2013 | 07:53 PM
  #6  
crich88848's Avatar
On The Tree
 
Joined: Dec 2012
Posts: 173
Likes: 3
From: Chattanooga, TN
Default

What's the purpose of wrapping the downpipe?
Reply
Old Jan 23, 2013 | 09:15 PM
  #7  
gagt3100's Avatar
Thread Starter
Banned
iTrader: (-2)
 
Joined: Jul 2012
Posts: 222
Likes: 0
Default

Originally Posted by Ill_Born_ss
Definately want it after the cat, before it you will really screw with your fueling even if you had a special tune written for when it was open it would most likely leak and cause false readings while closed.
I am catless so no worries there
Originally Posted by mike690003
Let me know if you need an electric cutout. I have my slightly used DMH for sale. FOR CHEAP!!
Will do! PM Me pics.

Originally Posted by crich88848
What's the purpose of wrapping the downpipe?
It was ticking at 4k+ rpms and the wrap petty much silenced it, and also to keep the heat in.
Reply
Old Jan 23, 2013 | 09:29 PM
  #8  
TheJPGXP's Avatar
TECH Enthusiast
 
Joined: May 2011
Posts: 640
Likes: 1
Default

Had mine where the cat was supposed to be.

Originally Posted by SSGoat
let me jus say.... cutout right there.. with rev limiter delete.... sweet jesus mary mother of god...
You should here 6700 in 2nd gear. I'm surprised I never broke anything.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Jan 25, 2013 | 12:38 PM
  #9  
SSGoat's Avatar
Launching!
iTrader: (2)
 
Joined: May 2009
Posts: 245
Likes: 0
From: Long Beach CA.
Default

Originally Posted by TheJPGXP
Had mine where the cat was supposed to be.



You should here 6700 in 2nd gear. I'm surprised I never broke anything.
going wot hopping on the freeway was the best, i miss my baby ;(
my sister has her now so i closed off the cutout but i sure do miss having a v8

did you also get that delicious sound when going wot in a gear and when letting off of the gas completely that sound right before it shifts, sounding like it was coughing up a loogie hahaah
Reply
Old Jan 25, 2013 | 08:56 PM
  #10  
TheJPGXP's Avatar
TECH Enthusiast
 
Joined: May 2011
Posts: 640
Likes: 1
Default

Yessir.
Reply




All times are GMT -5. The time now is 10:03 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE